CAS Key Laboratory of Magnetic Materials and Devices;
and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology;
Ningbo Institute of Materials Technology&Engineering;
Chinese Academy of Sciences;
Ningbo 315201;
China;
Department of Physics;
Renmin University of China;
Beijing 100872;
China;
State Key Lab of Metastable Materials Science and Technology;
and College of Materials Science and Engineering;
Yanshan University;
Qinhuangdao 066004;
China;
Institute of Physics;
Chinese Academy of Sciences;
Beijing 100190;
China;